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-15-
Service Manual CP-785F
+8V
13
43
24
23
42
40
CVBS/Y
IFIN
TUNERAGC
SOUND
TRAP
27
37
VIDEO SWITCH
VIDEO IDENT
.
VIDEO FIL
TERS
38
(35)
(35)
(32)
28
29
44
31
60
55
59
58
57
2
3
4
9
12
10 P
AGE
MEMOR
Y
TELETEXT/OSD
DISPLA
Y
+3.3V
56
54
61
(20)
AUDEXT
SIFIN
QSSOUT/AMOUT
AMOUT
RESET
VPE
LED OUT (2x)
VST OUT
ADC IN (4x)
I/O PORTS (4x)
1+62-64
SCL
SDA
5-8
10/11
VISION IF
ALIGNMENT
-FREE
PLL
DEMOD.
AGC/AFC
VIDEO AMP
.
CHROMA
P
AL/SECAM/NTSC
DECODER
H/V SYNC SEP
.
H-OSC. + PLL
(32)
30
41
18
39
14
19
17
H
34
16
33
25
26
22
21
36
(20)
46
47
48
45
50
49
53
52
51
BLKIN
BCLIN
BO
GO
RO
COR
CONTR/BRIGHTN
OSD/TEXT
INSER
T
CCC
WHITE-P
. ADJ.
HOUT
V
-DRIVE
EHT
O
EWD
R/V
Y
R
R
V
H
G
G
B
B
BL
RGB/YUV INSER
T
RGB/YUV MA
TRIX
SA
TURA
TION
YUV/RGB MA
TRIX
U
V
G/Y
B/U
BL
V
V
-DRIVE +
GEOMETR
Y
ROM/RAM
CVBS
I
2
C-BUS
TRANSCEIVER
VST
PWM-DAC
I/O PROTS
TELETEXT
ACQUISITION
SYNC
EW GEOMETR
Y
H-DRIVE
2
nd
LOOP
H-SHIFT
BASE-BAND
DELA
Y
LINE
REF
REF
QSS SOUND IF
AGC
QSS MIXER
AM DEMODUL
T
O
R
ENIANCED
80C51 CPU
LUMA
DELA
Y
PEAKING
BLACK STRETCH
Summary of Contents for DTE-29U1TH
Page 67: ...Service Manual CP 785F 66 7 Exploded view ...
Page 68: ...Service Manual CP 785F 67 8 PCB Layout 8 1 Main PCB ...
Page 69: ...Service Manual CP 785F 68 8 2 AV PCB ...
Page 70: ... 69 Service Manual CP 785F 9 Circuit Diagram ...
Page 71: ...NEC Corporation 7 1 SHIBA 5 CHOME MINATO KU TOKYO 108 8001 JAPAN ...